the multitudes outside this lottery retailer in arizona, just across the border from california and nevada, where powerball tickets aren't sold. he arrived at 9:00 this morning. >> quarter to ten. been in line for 30 minutes. probably have another good 45, 50 minutes. one hour. >> reporter: more than an hour later, les finally buys a ticket. >> definitely going to win. i've already spent the money, so i better win. >> reporter: i'm in the vault where they lock the machines. there's someone listening in on the phone, there's a briefcase, holding powerballs like these. and in just a short while, security will come in and move two of these lottery machines into the studio. at powerball's tallahassee studio, security is tight. there are seven surveillance cameras and two in the locked vault where the lottery machines are squirreled away. they're determined to avoid any suggestion of a fix, like the 1980 scandal in pennsylvania, where workers substituted weighted balls to rig the game. >> because the integrity of the game is what is utmost important to us. the door to get in here is double lock